Act on this, mostly signal

Sleepwalk hands Claude Code sessions to the cloud when your Mac lid closes

What to do

Install the free MIT-licensed plugin if you want sessions to continue while the laptop sleeps.

Why

Handoffs take 5 to 7 seconds in each direction, according to the author's measurements.

What the research found

Sleepwalk is a free MIT-licensed macOS Claude Code plugin that pushes a running local session to a cloud branch when the lid closes and teleports it back on open, with measured 5 to 7 second handoffs.

Claims and how well the evidence supports them

Sleepwalk is free, MIT licensed and macOS only 98%
Lid close to cloud session running took 5 and 7 seconds in measured round trips 99%
Sleepwalk installs via /plugin marketplace add swperb/sleepwalk 98%
Cloud agent gets a summary brief, not the full local conversation 99%

Evidence

github.com https://github.com/swperb/sleepwalk
reddit.com https://reddit.com/r/ClaudeAI/comments/1xaflh1/i_built_a_claude_code_plugin_that_hands_your

Actionability rated medium.